Leg-exercising device

ABSTRACT

A leg-exercising device comprises a base, two slide rail seats, two transmission members, and two pedals. The slide rail seats are mounted on the base and are provided therein with a receiving space for disposing the transmission member which is formed of two sprocket wheels and a drive chain running on the two sprocket wheels. The pedals are slidably mounted on the transmission members such that the pedals move up and down along the drive chains of the transmission members.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates generally to an exercise machine, and more particularly to a leg-exercising device.

[0003] 2. Description of Related Art

[0004] There are a variety of exercise machines available in the market place for consumers to choose from. These conventional exercise machines are generally cumbersome and can not be therefore moved around or stored easily. In addition, the conventional exercise machines take up a large floor space.

BRIEF SUMMARY OF THE INVENTION

[0005] The primary objective of the present invention is to provide a leg-exercising device which can be used in a place where the floor space is limited.

[0006] It is another objective of the present invention to provide a leg-exercising device which can be used in conjunction with an ordinary chair for building the leg muscles.

[0007] In keeping with the principle of the present invention, the foregoing objectives of the present invention are attained by the leg-exercising device comprising a base, two slide rail seats, two transmission members, and two pedals. The slide rail seats are mounted on the base for housing the transmission members. The two pedals are slidably mounted on the transmission members such that the pedals move up and down along the drive chains of the transmission members.

BRIEF DESCIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0008]FIG. 1 shows a perspective view of the present invention.

[0009]FIG. 2 shows an exploded view of the present invention.

[0010]FIG. 3 shows a partial exploded view of the present invention.

[0011]FIG. 4 shows a partial sectional view of the present invention.

[0012]FIG. 5 shows a schematic view of present invention at work.

[0013]FIG. 6 shows a schematic view of the present invention in use.

[0014]FIG. 7 shows a side schematic view of the present invention at work.

[0015]FIG. 8 shows a schematic view of the present invention in use in conjunction with a massaging chair.

[0016]FIG. 9 shows a partial exploded view of another preferred embodiment of the present invention.

[0017]FIG. 10 shows a schematic perspective view of the present invention in use in conjunction with a chair.

DETAILED DESCRIPTION OF THE INVENTION

[0018] As shown in FIGS. 1-8, a leg-exercising device of the present invention comprises a base 10, two slide rail seats 20, two transmission members 30, two pedals 40, and two covering plates 50.

[0019] The base 10 is rested on a surface to support the leg-exercising device on the surface.

[0020] The slide rail seats 20 are mounted on the base 10 and are provided therein with a receiving space 21.

[0021] The transmission members 30 are mounted in the receiving spaces 21 of the two slide rail seats 20 and are formed of two sprocket wheels 31 and 32, a drive chain 33 fitted with the sprocket wheels 31 and 32, and two support rods 34 and 35 for mounting the two sprocket wheels 31 and 32.

[0022] The two pedals 40 are slidably mounted on the drive chains 33 of the transmission members 30.

[0023] The two covering plates 50 are respectively fitted with the slide rail seats 20 to shield the transmission members 30 such that the fringe of the covering plates 50 and the inner wall of the receiving spaces 21 of the slide rail seats 20 form therebetween a slide slot 51.

[0024] As shown in FIGS. 1 and 2, the two slide rail seats 20 are fastened with a tilting rod 23 enabling the two slide rail seats 20 to be tilted. Upon having been tilted, the slide rail seats 20 are located by a locating piece 24.

[0025] As shown in FIGS. 3 and 4, the drive chain 33 is formed of a plurality of links 36 and link rods 37. The pedals 40 are fastened to a fastening hole 64 of a pedal fastening block 60. The link rods 37 are fastened with the fastening rods 41 for fastening the pedal fastening block 60 which serves to stabilize the pedals 40 in motion.

[0026] As shown in FIG. 9, the present invention further comprises two bearings 70 which are located at two sides of the links 36. The pedal fastening block 60 is provided with two fastening pillars 38 for fastening a seat block 62 which is in turn fastened with a fastening seat 63 for fastening the fastening rods 41 of the pedals 40.

[0027] The drive chains 33 may be replaced by belts which run-on the two wheels 31 and 32.

[0028] The present invention can be used in conjunction with a massage chair, as shown in FIG. 8, or an exercise chair, as shown in FIG. 10. 

I claim:
 1. A leg-exercising device comprising: a base; two slide rail seats mounted oppositely on said base and provided in the interior with a receiving space; two transmission members, each being mounted in said receiving space of said slide rail seats and formed of two wheels and a drive chain running on said two wheels, said two wheels being mounted on a support rod; two covering plates fitted with said slide rail seats such that the fringe of said covering plates and the inner wall of said receiving space of said slide rail seat form therebetween a slide slot; and two pedals, each being fastened with a pedal fastening block which is slidably fastened with said drive chain in conjunction with two fastening rods, thereby enabling said pedals to move along said drive chains.
 2. The leg-exercising device as defined in claim 1, wherein said two slide rail seats are mounted on a tilting rod such that said two slide rail seats can be tilted, said tilting rod being provided with a locating member for locating said two slide rail seats upon being tilted.
 3. The leg-exercising device as defined in claim 1, wherein said pedals are fastened with said drive chains in conjunction with two bearings which are fastened with a seat block whereby said seat block is fastened with a fastening seat for fastening said fastening rods of said pedals.
 4. The leg-exercising device as defined in claim 1, wherein said two transmission members are formed of two wheels and a belt running on said two wheels. 